Airasia / left my phone on a flight and help to find it has been very poor

I left my phone on an Air Asia flight (details below) and I reported it within an hour of being off the flight. Within an hour of me departing the plane the phone had apparently disappeared - it was not in the lost in found and the cabin crew couldn't find it. I left the phone in the seat pocket - it was easy to find.

It was reported at Jakarta airport within the hour of arriving and again reported via a Mrs Lufti 2 hours later - this was with with a Mrs Lufti - +[protected] (iaa_cgk_cbto@airasia.com) - who works at JK airport and has not been very helpful. I asked her to check Bali Airport as this is where the flight went next - she did not respond to me. I then sent her the exact flight itinerary for the plane I flew on. for both 2nd & 3rd Nov so that she could check lost and found in other airports. She still hasn't responded.
My Phone is a slim Samsung Galaxy S8 with a Grey case - the case has a magnetic element to it. It has a helicopter sticker inside.

I'm sure my phone wouldn't have been stolen and would have been handed in.